prepare fastapi root layout for server deployment

app/api/imports.py

@@ -0,0 +1,26 @@
+from fastapi import APIRouter, Depends, File, UploadFile
+
+from app.core.response import ApiResponse, ok
+from app.core.user_context import UserContext, get_user_context
+from app.schemas.imports import CaseSqlImportApplyResponse, CaseSqlImportPreviewResponse
+from app.services.case_sql_import_service import CaseSqlImportService
+
+router = APIRouter()
+
+
+@router.post("/case-sql/preview", response_model=ApiResponse[CaseSqlImportPreviewResponse])
+async def preview_case_sql(
+    file: UploadFile = File(...),
+    _: UserContext = Depends(get_user_context),
+):
+    """病例 SQL 预检：上传接口 SQL 文件，解析可导入病例数据但不写入数据库。"""
+    return ok(await CaseSqlImportService().preview(file))
+
+
+@router.post("/case-sql/apply", response_model=ApiResponse[CaseSqlImportApplyResponse])
+async def apply_case_sql(
+    file: UploadFile = File(...),
+    _: UserContext = Depends(get_user_context),
+):
+    """病例 SQL 导入：确认后把 SQL 中的病例表数据映射写入当前本地数据库。"""
+    return ok(await CaseSqlImportService().apply(file))